Array
(
    [id] => 1964
    [module_id] => 7
    [cate_id] => 113
    [title] => 固体密度计的设计原理及主要功能
    [subtitle] => 
    [style] => 
    [status] => 1
    [hidden] => 0
    [link_url] => 
    [target] => 0
    [author] => handler
    [author_type] => admin
    [keywords] => 
    [description] => 
    [note] => 
    [identifier] => 
    [hits] => 919
    [good_hits] => 0
    [bad_hits] => 0
    [post_date] => 1624950126
    [modify_date] => 1625824734
    [thumb_id] => 1744
    [istop] => 0
    [isvouch] => 0
    [isbest] => 0
    [langid] => zh
    [points] => 0
    [ip] => 127.0.0.1
    [replydate] => 0
    [taxis] => 0
    [htmltype] => cateid
    [tplfile] => 
    [uid] => 0
    [seotitle] => 
    [price] => 
    [free] => 
    [ifspecial] => 
    [promotion_start] => 
    [promotion_end] => 
    [freeshipping] => 
    [weight] => 
    [virtual] => 
    [thumb] => Array
        (
            [files] => Array
                (
                    [id] => 1744
                    [title] => MZ-A300(2)
                    [filename] => upfiles/202106/30/ac77bd2cc3e77c7dc.jpg
                    [thumb] => upfiles/202106/30/1744.thumb.jpg
                    [postdate] => 1625015239
                    [ftype] => jpg
                    [uid] => 0
                    [flv_pic] => 
                    [dir] => 
                )

            [gd] => Array
                (
                    [big] => upfiles/202106/30/1744_big.jpg
                    [n2] => upfiles/202106/30/1744_n2.jpg
                )

        )

    [content] =>
固体密度计是将现代微电子技术与阿基米德原理相结合而研发出来的新型密度测试仪器。此仪器改变了传统密度测试的繁琐操作，实现了橡粉末粉尘、胶固体、塑料固体、精密陶瓷、磁性材料等固体样品的快速测量。该新型固体密度计能满足现代产品生产及新材料研究过程中对样品密度的测量要求。
固体密度计的设计原理：
固体密度计是通过浮力与密度计算公式的推导与变换形成等式，首先利用高精密固体分析天平分别计算出待测样品在空气中的重量(W1)和在水中之重量(W2)，并计算出W1-W2值，水的密度默认为ρ=1，通过V样品=V排水建立等式，即可计算出样品的密度值：ρ=W1/(W1-W2)xρ水，此为固体计算公式。如果待测样品为液体，则先利用一个已知体积和密度的标准块作为参考物，通过水的密度ρ水与标准块在空气中重量(W1)水中重量(W2)得出计算公式：ρ液=(W1-W2)/标准块V xρ标准
固体密度计的功能：
1、快速检测，更有效率；
2、具有实际水温补偿功能，可适应测试环境变化；
3、采用一体成型大容量专业测量平台，高透明，耐磨耐摔；
5、配置一体成型防风防尘罩，组合方便，坚固耐用；
6、具有全自动零点追踪、蜂鸣器报警、超载报警功能；
7、具有溶液补偿功能，使用时做戒指，也可以使用其他液体介质；
8、具有密度上下线设定功能，可自动判断式样是否合格，并报警提示。
    [_cate_] => Array
        (
            [id] => 113
            [identifier] => xingyedongtai
            [langid] => zh
            [cate_name] => 行业动态
            [parentid] => 1
            [module_id] => 7
            [tpl_index] => 
            [tpl_list] => 
            [tpl_file] => 
            [if_index] => 0
            [taxis] => 3
            [status] => 1
            [if_hidden] => 0
            [keywords] => 
            [description] => 
            [ifspec] => 0
            [note] => 
            [psize] => 2
            [inpic] => 
            [linkurl] => 
            [target] => 0
            [ordertype] => id:desc
            [subcate] => 
            [ico] => 
            [small_pic] => 
            [medium_pic] => 
            [big_pic] => 
            [seotitle] => 
        )

)